From nobody Sun Nov 24 18:32:40 2024 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48C0918C030; Mon, 4 Nov 2024 03:24:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730690643; cv=none; b=chZFcigOERnhP5WghuxcYgfMvohCobKwM/g/oum1uQc4uCP0sIDsgjFDPJXfoKOfDriB9uxBa3NCFRvCgjKqLiDmd0M6q3q4KCmKsg056EMNbz8wu2ZXrYtS/4L5eVCPbYiqXitCaInIBfhcPVjyBu0fgl9IVgAZnRAy96TmLK8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730690643; c=relaxed/simple; bh=KoUskBTXBUY86r/8QhXh9AHgI3l1SllZZxO/ugjuwqE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HvOzznhpZkC8bjIIEb2Mw1pSJm0PDaeyjCFkWtsI1Nf1Nzil0PkAgJWra2f4f8S4Ky5GA9QCt/Z1RVPMB6UJZ0Kada/NWQ9wqw2+YJQz9Be0Hp1q0p4e4vMa5d6CgmXilQnExSu4l7aymRdW79/eSgAyYGHO+xCC9+KECQ9WSX4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=GmWosEi2; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="GmWosEi2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730690642; x=1762226642; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KoUskBTXBUY86r/8QhXh9AHgI3l1SllZZxO/ugjuwqE=; b=GmWosEi2vyV5gP4PDmrlLoEElY9+ZxWs1L+sHz1Sb/KzkYGt5hJPoKJA Hm9hL3qDtRiXYPvJ3mbeMp3sL6PYZaecH9EyqdJHLBAnRedUdRjwJAsP5 iyzrkI5HbG3llHuLUYRW4mZmkX6AqJXLt/I425eH8bzTLqeddL/nw98Tt VqZti7WMZSVHeSKybeU8Bj4iGVzOULW7YOyHu+PgNVK7lAH6G5s0h3bhr Me5cj2dhuDt7WhHHtcpHCLJquTBKo2c27SRk5HnvQrtzlQlQOti68RYRb aC2JMNG1g4F1Li7lWQz5Wg6pVe1Ow3QndpxxGmtBX2MqwjLC3zQ81OBm0 Q==; X-CSE-ConnectionGUID: qRuql1bwQB6rAUGg3C5FaQ== X-CSE-MsgGUID: P3YXKsrLT6OPCEiwWq/lSg== X-IronPort-AV: E=McAfee;i="6700,10204,11245"; a="30594297" X-IronPort-AV: E=Sophos;i="6.11,256,1725346800"; d="scan'208";a="30594297" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2024 19:23:57 -0800 X-CSE-ConnectionGUID: qVDblZUvS7moqn5ZxztHtg== X-CSE-MsgGUID: YExtx09/Rw2ELaa1/m3WKw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,256,1725346800"; d="scan'208";a="114331820" Received: from yungchua-ws.ostc.intel.com (HELO yungchua-ws.intel.com) ([10.54.69.90]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2024 19:23:57 -0800 From: Bard Liao To: linux-sound@vger.kernel.org, vkoul@kernel.org Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org, pierre-louis.bossart@linux.dev, bard.liao@intel.com Subject: [PATCH 08/12] Soundwire: generic_bandwidth_allocation: set frame shape on fly Date: Mon, 4 Nov 2024 03:23:54 +0000 Message-Id: <20241104032358.669705-9-yung-chuan.liao@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241104032358.669705-1-yung-chuan.liao@linux.intel.com> References: <20241104032358.669705-1-yung-chuan.liao@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" We need to recalculate frame shape when sdw bus clock is changed. And need to make sure all Peripherals connected to the Manager support dynamic clock change. Signed-off-by: Bard Liao Reviewed-by: Ranjani Sridharan --- .../soundwire/generic_bandwidth_allocation.c | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/sou= ndwire/generic_bandwidth_allocation.c index 2950a3d002ce..d847413141d3 100644 --- a/drivers/soundwire/generic_bandwidth_allocation.c +++ b/drivers/soundwire/generic_bandwidth_allocation.c @@ -327,6 +327,19 @@ static int sdw_select_row_col(struct sdw_bus *bus, int= clk_freq) return -EINVAL; } =20 +static bool is_clock_scaling_supported(struct sdw_bus *bus) +{ + struct sdw_master_runtime *m_rt; + struct sdw_slave_runtime *s_rt; + + list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) + list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) + if (!is_clock_scaling_supported_by_slave(s_rt->slave)) + return false; + + return true; +} + /** * sdw_compute_bus_params: Compute bus parameters * @@ -352,6 +365,10 @@ static int sdw_compute_bus_params(struct sdw_bus *bus) clk_buf =3D NULL; } =20 + /* If dynamic scaling is not supported, don't try higher freq */ + if (!is_clock_scaling_supported(bus)) + clk_values =3D 1; + for (i =3D 0; i < clk_values; i++) { if (!clk_buf) curr_dr_freq =3D bus->params.max_dr_freq; @@ -378,6 +395,12 @@ static int sdw_compute_bus_params(struct sdw_bus *bus) return -EINVAL; } =20 + if (!mstr_prop->default_frame_rate || !mstr_prop->default_row) + return -EINVAL; + + mstr_prop->default_col =3D curr_dr_freq / mstr_prop->default_frame_rate / + mstr_prop->default_row; + ret =3D sdw_select_row_col(bus, curr_dr_freq); if (ret < 0) { dev_err(bus->dev, "%s: could not find frame configuration for bus dr_fre= q %d\n", --=20 2.34.1